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arXiv · 1007.1746

Constraints on neutron star radii based on chiral effective field theory interactions

K. Hebeler·J. M. Lattimer·C. J. Pethick·A. Schwenk
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Abstract

We show that microscopic calculations based on chiral effective field theory interactions constrain the properties of neutron-rich matter below nuclear densities to a much higher degree than is reflected in commonly used equations of state. Combined with observed neutron star masses, our results lead to a radius R = 9.7 - 13.9 km for a 1.4 M_{solar} star, where the theoretical range is due, in about equal amounts, to uncertainties in many-body forces and to the extrapolation to high densities.

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K. Hebeler, J. M. Lattimer, C. J. Pethick, A. Schwenk. 2010-10-26. Constraints on neutron star radii based on chiral effective field theory interactions. https://doi.org/10.1103/physrevlett.105.161102

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